The Schwarz Lemma for nonpositively curved riemannian surfaces.
Troynaov, Marc
Manuscripta mathematica, Tome 70 (1991), p. 251-256 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1991-01-01
EUDML-ID : urn:eudml:doc:155641 
@article{GDZPPN002232251,
     title = {The Schwarz Lemma for nonpositively curved riemannian surfaces.},
     journal = {Manuscripta mathematica},
     volume = {70},
     year = {1991},
     pages = {251-256},
     zbl = {0736.53043},
     url = {http://dml.mathdoc.fr/item/GDZPPN002232251}
}

Troynaov, Marc. The Schwarz Lemma for nonpositively curved riemannian surfaces.. Manuscripta mathematica, Tome 70 (1991) pp. 251-256. http://gdmltest.u-ga.fr/item/GDZPPN002232251/